6L90E 4X4

Gearstar’s 6L90E 4×4 performance transmission lineup is engineered for four-wheel-drive vehicles that require strength, durability, and consistent power delivery under demanding conditions. Each unit is custom-built and dyno-tested to handle increased horsepower and torque loads from modern LS and LT engines, making these transmissions ideal for lifted trucks, off-road rigs, and heavy-duty builds. With options across several performance levels, from Level 2 up to Level 4, you can select the configuration that best matches your power goals. Reinforced internals, high-capacity clutch packs, and precision engineering ensure smooth shift quality and long service life. Trust Gearstar’s craftsmanship for a transmission that performs as hard as you drive.